Radiator



.Pune 3 1924.

F. K. TOPALE RADIATOR Filed Oct. 27. 1920 Patented .Fume 3, 1924 S T .ii

PATENT oFFIcE.

PETER K. ToPALE, OIF PHOENIX, ARIZONA.

' RADIATOR.

Application nieu october 27, 192'0. Serial No. 419,891.

To all whom t may concern Be it known that I, PETER K. Tori-inn, citizen of the United States, residing at Phoenix, in the county of Maricopa and State of Arizona, have invented certain new and useful Improvements in Radiator-s, of which the following is a specification.

The present invention has reference generally to improvements in that class of inf ventions known as heat exchangers and more particularly relates to radiators for motor vehicles.

It is the primary aim and object of the invention to provide a device of the above C character wherein the water conducting tubes are of novel construction, being designed primarily to afford ample 'cooling surface and in addition are capable of eX- panding to prevent bursting should the water freeze in the radiator.

More particularly this invention conteniplates the provision of a radiator wherein the tubes are formed of substantial zig zag sections secured together i-'n nesting pairs while the adjacent pairs are spaced and shaped 'soas to form air passages vfor `cooling purposes.

It is a more specific object of the invention t'o provide a V'radiator wherein the upper and lower end portions of one nesting pair of sections are secured in overlapping relation to the corresponding Vportions of the adjacent pair to provide leak proof joints at the mouths of the tubes.

Among the otheraims and objects of this invention may be recited the provision of a device of the above mentioned character with a view to compactness and wherein the number of parts are few, the construction simple', the cost of production low and the eiiiciency high.

Other objects, as well as the nature, characteristic features and scope of the invention will be more readily understood from the following description taken in connection with the accompanying drawings and pointed out in the claims, forming a part of this specification. v

The invention is clearly illustrated in the accompanying drawings in which Figure 1 isy a front elevation of the improved radiator Apartly broken away and shown in transverse section.

Figure 2 is an enlarged transverse sectional perspective detail of the same.

Figure 3 is an enlarged front elevation of a portion of the radiator core.

Figure 4L is a perspective of a pair of the nestabl'e sections arranged at right angles indicating the manner of placing them in nest'able relation and before inclining the side portions.

Figure 5 is an enlarged fragmentary longitudinal section of the pair of sections shown in Fig. 4t when connected together.

Referring now more particularly to the accompanying drawings, there is provided a radiator including a frame (l) in which` are disposed alower receptacle (2) i and an upper receptacle (3), the receptacles beingv arranged in communication with each other by means of the improved core composed of tubes (4e), the construction of which constitutes the principal feature of the present invention.

In reducing the improvement to practice the same may be said to consist of a plurality of peculiarly bent and vertically dis posed plate-like sections' (5), of suitable metal, pairs of the sections coacting to ferm sinuous tubes for conducting water from one receptacle to the other. Each pair of liesting sections is bent to form alternate U shaped channels (6), the sides (7) of which are disposed in parallel relation at the ends. These pairs of sections are nested and the ends brazed or otherwise secured together. The medial portions of all of the channels are arranged parallel to each other while the alternate medial portions (8) of the U (shaped channels are crimped from points near their respective ends to form longitudinal' grooves which are positioned oppositethev alternate outer medial portions (10) ofthe channels and this crimping acts to incline the side portions (7) in opposite Ldirections and at the same time spacing the portions ofpone section with respect to the corresponding portions of the adjacent section of the same pair so as to in consequence provide the sinuous tubes. It is also to be noted that the crimping action in forming the grooves causes the U shaped channel portions to assume an Ni shape in crossV section. The sections, however, retain their desired shape at the ends.

Of course, after the nesting sections Vare secured in the manner described to form the tubes, a plurality of them are secured together as by brazing in the manner indicated, so as to leave air passages (1l.) therebetween. At the ends, the sides oi' the channels of one pair of nesting sections rest against and are secured to the medial portions of the channels ot' the adjacent pair ot nesting sections. `Between the ends ot the sections, there is a further and additional coaction in that the outer surface of the inner hump of the v'l abut the outer tace o the medial portion ot the outer channel (6) of theadjacent pair oit nesting sections as indicated by the numeral (l2). This i'cature assures oi.t rigidity.

-When all oit the sections are assembled in the manner indicated, the upper and lower end portions ot the sections ot one nesting pair are secured in overlappingrelation as at (13) to the corresponding end portions of the adjacent section of the adjacent nesting pair tor the purpose ot providing leak prooin joints at the mouths (14) ot the tubes, as is apparent.

By the provision oi this particular construction and system, there is provided a radiator capable of use in various climates. in that the lVl construction anords agreater cooling surface and is also freeze-proof, since the said construction allows ample room for expansion.

It is believed, in view of the foregoing description, that a further detailed description ot the invention is entirely unnecessary. Likewise, it is believed that the advantages of the invention will be readily apparent.

Having thus fully described the invention what l claim is 1 l. In a radiator, a nestable section of bendable metal of zig Zag shape in cross section forming yalternate symmetrical U shaped channels and having the medial pork tions or' alternate channels crimped from points near the respective ends to Vtorni grooves.

2. In a radiator, a nestable section or bendable metal of substantial zig Zag shape in cross section forming alternate symmetrical U shape channels and having the medial portions of 'all' of the channels arranged parallel to each other and the medial portions ot the alternate channels crimped longitudinally from points near the respective ends to Yform grooves.

3. A. radiator of the character described including a core formed of a plurailty of sections connected together in nesting pairs to 'form tubes, the sections being of alternate U shape channel formation in cross section and having only the medial portions of alternate sections provided with grooves to insure of the tube formation and to increase the rigidity oi" the core.

l. A radiator as claimed in cl aim 3 wherein the upper and lower end portions of the sections oi' each nesting pair are connected to the corresponding end portions ot' the adjacent sections to :torni leak proof joints at the mouths of the tubes.

5. A radiator including a core formed of a plurality of sections ot' alternate U shape channel formation in cross section, the sec-` tions being nested together in pairs and having their alternate medial portions provided with longitudinal grooves extending :trom points near their end edges to form sinuous water passages betweenk said sections, the opposite faces ot the grooved medial portions forming humps for cone tacting with the straight medial portions. of the adjacent pair oit sections.

6. A radiator including a core formed of a plurality of sections, the sections being ot alternate U shape channel formation in cross section and nested together in pairs with their parallel side portions secured to gether at their end edges, the medial portions ol alternate channels of each pair of sections being provided with longitudinal grooves and the side portions being inclined medially of the end edges and spaced from the corresponding portions of the other sections to form sinuous tubes therebetween, the opposite faces of the grooved medial portions forming humps for contacting with the adjacent pair of sections to increase the rigidity of the core, and the upper and lower end portions or' the sections of each nesting pair of sections being connected to the corresponding end portions of the adjacent sections to form leak proof joints at' FREDERICK T. GRIFFITH. 

